The four- times world champion who was due become a free agent at the end of the season , has agreed a new - three years deal with the team.
The four - time Champion has been at the team since 2015.
The contract ends in 2020.
The four- times world champion who was due become a free agent at the end of the season , has agreed a new - three years deal with the team.
The four - time Champion has been at the team since 2015.
The contract ends in 2020.
